EP 4107500 A1 20221228 - METHOD AND DEVICE FOR CONTACTLESSLY SENSING THE TEMPERATURE OF A ROTATING PART OF AN ELECTRICAL MACHINE
Title (en)
METHOD AND DEVICE FOR CONTACTLESSLY SENSING THE TEMPERATURE OF A ROTATING PART OF AN ELECTRICAL MACHINE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BERÜHRUNGSLOSEN ERFASSUNG DER TEMPERATUR VON EINEM ROTATIONSTEIL EINER ELEKTRISCHEN MASCHINE
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION SANS CONTACT DE TEMPÉRATURE D'UNE PIÈCE ROTATIVE DE MACHINE ÉLECTRIQUE
Publication
Application
Priority
- DE 102020202077 A 20200219
- EP 2020087390 W 20201221
Abstract (en)
[origin: WO2021164930A1] The invention relates to a method for contactlessly sensing the temperature of a rotating part (10) of an electrical machine, which rotates with respect to an axis of rotation (12), by means of a fluorescent element (16) that is located on the rotating part (10) and thermally connected thereto, a light source (18) for exciting the fluorescent element (16) and at least one light sensor (20) for detecting fluorescent light that is emitted as a result of the excitation of the fluorescent element (16), wherein from this detection process, a variable correlating with a temperature-dependent decay time constant τ of the material of the fluorescent element is determined and the temperature of the rotating part (10) is determined using said variable. The invention also relates to a corresponding device (14) for contactlessly sensing the temperature of a rotating part (10) of an electrical machine.
IPC 8 full level
G01K 13/08 (2006.01); G01K 11/20 (2006.01)
CPC (source: EP)
G01K 11/20 (2013.01); G01K 13/08 (2013.01); H02K 11/25 (2016.01); H02P 29/66 (2016.02); H02K 11/35 (2016.01)
Citation (search report)
See references of WO 2021164930A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020202077 A1 20210819; CN 219200665 U 20230616; EP 4107500 A1 20221228; WO 2021164930 A1 20210826
DOCDB simple family (application)
DE 102020202077 A 20200219; CN 202090001106 U 20201221; EP 2020087390 W 20201221; EP 20839306 A 20201221